Galvanic battery.



No. 737,286. PATBNTBD AUG. 25, 1903. g

c. B. SGHOBNMBHL. GALVANIC BATTERY.

APPLICATION FILED MAY 1. 1903.

E0 MODEL.

UNITED STATES" Patented August 25., 1903.

'PATENT OFFICE.

cALvANlc ,BA1-Tem.

sPncIFrcAzrIoN form'ingpart of Letters Patent No. I'37',2ee, datedAugust 25, 1903.v llenas... mamy i, isos. saai No. 155,104. (No model.)

T0 all whom t may concern:

ABe it known that I, CHARLEsoB. SCHOEN- MEHL, a citizen of theUnitedStates, and a resident of Waterbury, inthefco'unty of New Havenand State of Connecticut, have invented certain new and usefulImprovements in Galvanic Batteries, of which the followingis aspecification.

This invention relates to depolarizing elements for galvanic batteries,and moreespecially to one made of compressed voxid of copper in specialform or shape, the same to be used in the usual way in connection with asuitable zinc and solution.

It is the object of the invention to provide a compressed annularoXid-of-copper depolarizer element that can be conveniently suspendedfrom the cover or bridge of a'j'ar and without the necessity of areceptacle for holding the same; further, to make it of special shape,whereby the bulk of material is thrown to the upper portion o f thebattery, where the solution is the strongest, thus insuring theconsumption of the entire element and avoiding the usual loss ofmaterial `in the lower portion.

With the above obj'ects in view my invention resides and consistsin thenovel construction and formation of an element, as shown in theaccompanying sheet of drawings, forming a part of this specification,upon which similarV letters of reference denote like or correspondingparts throughout the several iigures, and of which- Figure l showsa'central vertical cross-section of a depolarizerelement formedlinaccordance with my invention. spective view of 'a slightly-modified formof construction, the same comprising a solidcon-.

ical bodywith a central suspending-rodmolded therein. Y Fig. 3 is afurther-modified form of element comprising an annular tubular elementhaving a tapering outerwall and a central binding-rod with platesrorbridges at top and bottom for supporting the element. Fig. 4 is a plaincylindrical oXid-of-copper element compressed and baked as in theotherforms andoadapted for use in the suspending device shown in Fig. 3.

As shown, my element may be solid or tubular in construction, andlikewise represent a plain annular body or afrustum of a cone,

Fig. 2 is a per-V if desired, the element being larger through i its topedge than its bottom. Such an element isespecially adapted for use inconnection with a. circular or cylindrical zinc, as is common inmostforms of depolarizer basketbatteries.. It may therefore consist of asolid',

cylindrical body, as shown in Fig. 2, or in an annularl cylindricalbody, as shown in Figs. 1,3, and 4. These elements may contain a smoothexternal and internal surface or may be corrugated, if desired, andlikewise suspended'in` any suitable way, preferably, however, by asingle rod, which may be attached to or detached from the cover of thejar by simply operating a nut or two, as is common'in various forms ofbattery elements.

The majority of oXid-of-copper batteries now in use employ a receptacleto hold the vcopper scale. After a time these elements bea depolarizerwherein the bulk of material is y thrown to the top, as is also the casewith this invention; but my present invention differs from those in thatI do not employ a receptaolefor holding the material, but compress'fand'bake it to formand provide integral means of attachment.`

In the production of an elementLof this sort Idispense with theemployment of a basket, Aas above, and the annoyance andinconvenience ofhandling the same when recharging. The material itself is molded intothe shape desired and hardened by baking or other suitable process,which serves to retain the 'oxid of copper intact until consumed by theaction ofthe battery.

Referring to the letters of reference marked upon the drawings, arepresents the compressed oXid-of-copper element; b, the tapering outerWall; c, the tapering inner wall; d, the enlarged upper portion, and ethe lower contracted end.

f represents a bridge, as shown in Fig. 1,

formed integral with the element, and g a rod IOD attached thereto, bymeans of which the element is suspended.

These elements are used in the ordinary style of constant-currentbatteries,wherein an annular zinc encircles the element, as shown by hin dotted lines in Fig. l. This zinc may also be suspended from thecover in the usual or any preferred Way.

The rods g may be formed or molded integral with the element, as shownin Fig. 2, or used in connection With a pair of bridges or disks 'L' andj, as shown in Fig. 3, which disks would preferably containinWardly-deiiected iianges to engage the element, as shown. The rodpasses up centrally through these disks and may be attached With a nut,asin the other forms. This same form of suspending device could be usedin connection with the plain cylindrical element shown in Fig. 4. TheWalls of the cylinder shown in this figure are of uniform thickness, notbeing tapered as in the other figures, and is designed to disclose aplain compressed and hardened copper-oxid cylinder irrespective of anyparticular shape adapted for the same purpose.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. A battery element comprising an annular solidified oXid-otcopperdepolarizer.

2. A battery element comprising a tubular solidified oxid-of-copperdepolarizer.

3. A battery element comprising an annular solidified oXid-of-copperdepolarizer, disks to engage the upper and lower edges of the same and asuspension-bolt passing therethrough.

4. A battery element comprising annular solidified oxid-of-copperdepolarizer and a suspension-rod attached thereto.

5. Abatteryelementcomprisingasolidiiied depolarizer having an annularexterior side Wall at an angle other than a right angle to a Verticalline passing through the depolarizer.

6. Abatteryelementcomprsingasolidified depolarizer having both aninternal and external annular side Wall at an angle other than a rightangle to a vertical line passing through the depolarizer.

7. Abatteryelementcomprisingasolidiiied depolarizer having an annularexterior side wall at an angle other than a right angle to a Verticalline passing through said element and means for supporting said elementsfrom the cover of a jar.

8. A negative element for a battery comprisinga solidified depolarizerhaving exterior side Walls set at an angle other than a right angle to avertical line passing therethrough and a central opening through theelement.

9. A negative element for a battery, the same comprising a solidifieddepolarizer having an exterior side wall set at an angle other than aright angle to a vertical line passing therethrough and a conicalopening through the center of the element.

l0. A negative element for a battery comprising an annular solidifieddepolarizer with an opening therethrough having a bridge across its endand a suspension-rod connected to said bridge.

l1. A negative element for a battery comprising a solidified annularcylindrical depolarizer, larger through its top edge than its bottom,and an integral bridge across the upper end of said cylinder.

12. A negative element for a battery comprising an annular solidifiedoXid-of-copper depolarizer larger through ils top edge than its bottom.

Signed at Bridgeport, in the county of Fairfield and State ofConnecticut, this 24th day of April, A. D. 1903.

CHARLES B. SCHOENMEHL.

Witnesses:

C. M. NEWMAN, WILLIAM V. Dnvrrr.

